JSFiddle - React, Tailwind, and code Playground
HTML
<input type='file' id='user_profile_pic' >
<hr>
http://www.dotnettips.info/
JavaScript
$("#user_profile_pic").on("change", function(){
var file = this.files[0],
fileName = file.name,
fileSize = file.size;
alert("Uploading: "+fileName+" @ "+fileSize+"bytes");
});